Home / 7,550.15-11,315.97-3,389.09

Finding the Fourth Proportional to 7,550.15, 11,315.97 and 3,389.09

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Solution

The fourth proportional to 7,550.15, 11,315.97 and 3,389.09 is: 5,079.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,550.15 : 11,315.97 = 3,389.09 : x
  2. Step 2: Convert to fraction form
    7,550.15/11,315.97 = 3,389.09/x
  3. Step 3: Cross multiply
    7,550.15x = 11,315.97 × 3,389.09
  4. Step 4: Simplify right side
    7,550.15x = 38,350,784.19
  5. Step 5: Solve for x
    x = 38,350,784.19/7,550.15
  6. Step 6: Final answer
    x = 5,079.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.